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Related papers: Optical vortex crystals with dynamic topologies

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In two-dimensional (2D) inviscid incompressible flow, low background vorticity distribution accelerates intense vortices (clumps) to merge each other and to array in the symmetric pattern which is called ``vortex crystals''; they are…

Statistical Mechanics · Physics 2009-11-10 Takeshi Yoshida , Mitsusada M. Sano

Optical links and knots have attracted growing attention owing to their exotic topologic features and promising applications in next-generation information transfer and storage. However, current protocols for optical topology realization…

The introduction of topology unravels a new chapter of physics. Topological systems provide unique edge/interfacial quantum states which are expected to contribute to the development of novel spintronics and open the door to robust quantum…

We predict the existence of spatially localized nontrivial vortex states of a Bose-Einstein condensate with repulsive atomic interaction confined by a three-dimensional optical lattice. Such vortex-like structures include planar vortices,…

Other Condensed Matter · Physics 2007-05-23 Tristram J. Alexander , Elena A. Ostrovskaya , Andrey A. Sukhorukov , Yuri S. Kivshar

Toroidal vortex is a kind of novel and exotic structured light with potential applications in photonic topology and quantum information. Here, we present the study on high harmonic generation (HHG) from the interaction of the intense…

Optics · Physics 2024-10-10 Zijian Lyu , Yiqi Fang , Yunquan Liu

Discretized vortex-producing lenses programmed on low performance spatial light modulators have been used for the generation of optical vortices. However, the description of these vortices has been supported only by numerical simulations.…

We demonstrate a robust, stable, mobile, two-dimensional (2D) spatial and three-dimensional (3D) spatiotemporal optical soliton in the core of an optical vortex, while all nonlinearities are of the cubic (Kerr) type. The 3D soliton can…

Pattern Formation and Solitons · Physics 2015-11-03 S. K. Adhikari

We analyse nonequilibrium phase transitions in microcavity polariton condensates trapped in optically induced annular potentials. We develop an analytic model for annular optical traps, which gives an intuitive interpretation for recent…

Mesoscale and Nanoscale Physics · Physics 2019-03-27 A. V. Nalitov , H. Sigurdsson , S. Morina , Y. S. Krivosenko , I. V. Iorsh , Y. G. Rubo , A. V. Kavokin , I. A. Shelykh

In the last two decades, optical vortices carried by twisted light wavefronts have attracted a great deal of interest, providing not only new physical insights into light-matter interactions, but also a transformative platform for boosting…

Optics · Physics 2021-11-05 Chenhao Li , Stefan A. Maier , Haoran Ren

Quantized vortices stunningly illustrate the coherent nature of a superfluid Bose condensate of alkali atoms. Introducing an optical lattice depletes this coherence. Consequently, novel vortex physics may emerge in an experiment on a…

Other Condensed Matter · Physics 2008-07-24 Daniel S. Goldbaum , Erich J. Mueller

We studied complex lasing pattern formations in a thin-slice solid-state laser with wide-aperture laser-diode end-pumping. Radial and rectangular vortex arrays were found to be formed in a controlled fashion with symmetric and asymmetric…

Optics · Physics 2009-11-13 Kenju Otsuka , Shu-Chun Chu

Following recent evidence that the vortices in decaying two-dimensional turbulence can be classified into small--mobile, and large--quasi-stationary, this paper examines the evidence that the latter might be considered a `crystal' whose…

Fluid Dynamics · Physics 2021-08-04 Javier Jiménez

An optical vortex, produced at one point in an optical beam, would propagate through an optical system to another point where the vortex can be used for some purpose. However, asymmetrical optical elements in such a system can cause…

Optics · Physics 2012-01-09 Filippus S. Roux

Core optics components for high precision measurements are made of stable materials, having small optical and mechanical dissipation. The natural choice in many cases is glass, in particular fused silica. Glass is a solid amorphous state of…

Materials Science · Physics 2015-08-19 N. M. Kondratiev , V. B. Braginsky , S. P. Vyatchanin , M. L. Gorodetsky

We show that a super-resolution process with 100% visibility is characterized by the formation of a point of phase singularity in free space outside the lens in the form of a saddle with topological charge equal to -1. The saddle point is…

Optics · Physics 2009-11-13 G. D'Aguanno , N. Mattiucci , M. Bloemer , A. Desyatnikov

We show that optical moire lattices enable the existence of vortex solitons of different types in self-focusing Kerr media. We address the properties of such states both in lattices having commensurate and incommensurate geometries (i.e.,…

Direct observation of vortex states confined in mesoscopic regular triangle dots of amorphous MoGe thin films was made with a scanning superconducting quantum interference device microscope. The observed magnetic images illustrate clearly…

Superconductivity · Physics 2017-02-01 N. Kokubo , H. Miyahara , S. Okayasu , T. Nojima

We investigate the properties of single vortices and of vortex lattice in a rotating dipolar condensate. We show that vortices in this system possess many novel features induced by the long-range anisotropic dipolar interaction between…

Other Condensed Matter · Physics 2009-11-11 S. Yi , H. Pu

Photons can undergo spin-orbit coupling, by which the polarization (spin) and spatial profile (orbit) of the electromagnetic field interact and mix. Strong photonic spin-orbit coupling may reportedly arise from light propagation confined in…

Optics · Physics 2023-08-08 Chang Kyun Ha , Eun Mi Kim , Kyoung Jun Moon , Myeong Soo Kang

Vortices and their analysis play a critical role in the understanding of complex phenomena in turbulent flows. Traditional vortex extraction methods, notably region-based techniques, often overlook the entanglement phenomenon, resulting in…

Fluid Dynamics · Physics 2024-12-19 Adeel Zafar , Zahra Poorshayegh , Di Yang , Guoning Chen